Improved performance of the microbial electrolysis desalination and chemical-production cell using the stack structure.
Improved performance of the microbial electrolysis desalination and chemical-production cell using the stack structure.
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DOI：
10.1016/j.biortech.2012.03.073
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发表时间：
2012-07
影响因子：
11.4
通讯作者：
Shanshan Chen;Guangli Liu;Renduo Zhang;Bangyu Qin;Yong Luo;Yanping Hou
中科院分区：
文献类型：
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作者：
Shanshan Chen;Guangli Liu;Renduo Zhang;Bangyu Qin;Yong Luo;Yanping Hou
微生物电解脱盐化学生产池（MEDCC）是一种对海水进行脱盐、产酸、产碱的装置。本研究的目的是利用两种类型的堆结构来提高MEDCC的脱盐和化学生产性能。实验采用不同的膜间距、海水淡化室数和施加电压。结果表明，在MEDCC中加装盐堆提高了海水淡化和化学产品的生产速度。采用AEM-CEM叠层结构、膜间距为1.5mm的四室MEDCC，最大脱盐速率为0.58±0.02mmol/h，比MEDCC提高了43%。采用BPM-AEM-CEM叠层结构、膜间距为3mm的双脱盐室MEDCC，产酸率为0.079±0.006 mmol/h，产碱率为0.13±0.02mmol/h，分别比MEDCC高46%和8%。
The microbial electrolysis desalination and chemical-production cell (MEDCC) is a device to desalinate seawater, and produce acid and alkali. The objective of this study was to enhance the desalination and chemical-production performance of the MEDCC using two types of stack structure. Experiments were conducted with different membrane spacings, numbers of desalination chambers and applied voltages. Results showed that the stack construction in the MEDCC enhanced the desalination and chemical-production rates. The maximal desalination rate of 0.58±0.02mmol/h, which was 43% higher than that in the MEDCC, was achieved in the four-desalination-chamber MEDCC with the AEM–CEM stack structure and the membrane spacing of 1.5mm. The maximal acid- and alkali-production rates of 0.079±0.006 and 0.13±0.02mmol/h, which were 46% and 8% higher than that in the MEDCC, respectively, were achieved in the two-desalination-chamber MEDCC with the BPM–AEM–CEM stack structure and the membrane spacing of 3mm.